CN103977798B - A kind of ultrasound light-catalyzed dose of silver oxide/barium titanate and preparation method thereof - Google Patents
A kind of ultrasound light-catalyzed dose of silver oxide/barium titanate and preparation method thereof Download PDFInfo
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- CN103977798B CN103977798B CN201410244835.1A CN201410244835A CN103977798B CN 103977798 B CN103977798 B CN 103977798B CN 201410244835 A CN201410244835 A CN 201410244835A CN 103977798 B CN103977798 B CN 103977798B
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- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 238000002604 ultrasonography Methods 0.000 title claims abstract description 28
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910002113 barium titanate Inorganic materials 0.000 title claims abstract description 25
- 229910001923 silver oxide Inorganic materials 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title description 12
- 239000003054 catalyst Substances 0.000 claims abstract description 10
- 239000002105 nanoparticle Substances 0.000 claims abstract description 8
- 238000013019 agitation Methods 0.000 abstract description 14
- 230000035484 reaction time Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000006555 catalytic reaction Methods 0.000 abstract description 5
- 238000002525 ultrasonication Methods 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 abstract description 2
- 238000009388 chemical precipitation Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 238000003786 synthesis reaction Methods 0.000 abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 238000006243 chemical reaction Methods 0.000 description 13
- 238000001027 hydrothermal synthesis Methods 0.000 description 13
- 239000008367 deionised water Substances 0.000 description 12
- 229910021641 deionized water Inorganic materials 0.000 description 12
- 239000000843 powder Substances 0.000 description 12
- 238000000967 suction filtration Methods 0.000 description 12
- 239000000725 suspension Substances 0.000 description 12
- 239000013078 crystal Substances 0.000 description 11
- 238000003756 stirring Methods 0.000 description 10
- 229910010413 TiO 2 Inorganic materials 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 8
- 101710134784 Agnoprotein Proteins 0.000 description 7
- 238000005286 illumination Methods 0.000 description 7
- 238000001035 drying Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 230000010287 polarization Effects 0.000 description 4
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 4
- 229940043267 rhodamine b Drugs 0.000 description 4
- 230000002195 synergetic effect Effects 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 3
- 230000001699 photocatalysis Effects 0.000 description 3
- 238000007146 photocatalysis Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical group [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- OTCVAHKKMMUFAY-UHFFFAOYSA-N oxosilver Chemical compound [Ag]=O OTCVAHKKMMUFAY-UHFFFAOYSA-N 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Inorganic Compounds Of Heavy Metals (AREA)
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Abstract
The invention discloses a kind of silver oxide/ultrasound light-catalyzed dose of barium titanate nano cubic block heterojunction structure, is be the BaTiO of 60nm ~ 90nm by size dimension
3nano cubic block and be the Ag of 1 ~ 10nm at the diameter of its area load
2o nano particle is formed, wherein by quality ratio, and BaTiO
3: Ag
2o=5:1 ~ 1:5.This ultrasound light-catalyzed dose by alkali hot method synthesis BaTiO
3nano cubic block, then under ultrasonic agitation condition, utilizes simple chemical precipitation method at BaTiO
3loaded Ag on nano cubic block
2o nano particle is made.Catalyst of the present invention combines excellent visible light catalyst Ag
2o and BaTiO
3character, on the one hand under ultrasonication, be conducive to carrier molecule, the carrier produced in addition, the light-catalyzed reaction facilitating silver oxide is active; Simply, cost is low, efficiency is high, and reaction time is short, reproducible, and industrial applications has a extensive future for synthesis technique and equipment simultaneously.
Description
Technical field
The present invention relates to ultrasound light-catalyzed dose of one and preparation method thereof, particularly relate to silver oxide/barium titanate (Ag that one has collaborative (supersonic synergic illumination) performance of catalyzing and degrading pollutant of acousto-optic
2oBaTiO
3) ultrasound light-catalyzed dose of nano cubic block heterojunction structure and preparation method thereof; Belong to catalysis material and preparation field thereof.
Background technology
Photocatalysis is a kind of photochemical reaction in the presence of a catalyst, is the combination of photochemistry and catalyst.Photocatalysis degradation organic contaminant is that the one that development in recent years is got up is energy-conservation, high effective green environmentally friendly new technology.But it is as the research and development of New function material, also face a lot of limitation, as not high in catalytic efficiency, catalysqt deactivation, secondary pollution, sunshine utilization rate are low etc.Based on this, exploitation and structure heterojunction structure have become the important means obtaining novel high-performance catalysis material at present.
Piezo-electric effect is the phenomenon that in dielectric substance, a kind of mechanical energy and electric energy exchange.Piezo-electric effect has two kinds, direct piezoelectric effect and inverse piezoelectric effect.Direct piezoelectric effect, namely when crystal is subject to the effect of certain fixed-direction external force, inside just produces polarization, produces the contrary electric charge of symbol on certain two surface simultaneously; After external force removes, crystal returns to again uncharged state; When External Force Acting direction changes, the polarity of electric charge also changes thereupon; Stressed the produced quantity of electric charge of crystal is directly proportional to the size of external force.BaTiO
3be a kind of perouskite type piezoelectric crystal known the most at present, Curie temperature is 120 DEG C, is cubic perovskite type structure higher than this temperature, and along with temperature declines, symmetry of crystals declines.When temperature drops to 120 DEG C, barium titanate generation Phase transitions.In the warm area of 120 ~ 5 DEG C, barium titanate is tetragonal crystal system, now has piezoelectricity significantly, its spontaneous polarization strength along C direction of principal axis, i.e. [001] direction.[YongfeiCui, JoeBriscoe, the andSteveDunnEffectofFerroelectricityonSolar-Light-Driven PhotocatalyticActivityofBaTiO such as YongfeiCui
3[J] ChemistryofMaterials.2013,4215-4223.] in report the intrinsic polarity utilizing barium titanate crystal, have studied Ag-BaTiO
3photocatalysis performance, has good degradation effect to rhodamine B under sunshine.[the Jia Yanmin such as Jia Yanmin, Zhang Jun, Wu Zheng. a kind ofly adopt method [P] CN102887562A of nanometer piezoelectric ultrasonotomography waste water from dyestuff] crystal symmetry that reports piezoelectric nanometer piezoelectric under ultrasonication is lower, when being subject to External Force Acting generation deformation, in structure cell, the relative displacement of negative ions makes positive and negative charge center no longer overlap, cause crystal generation macroscopic polarization, thus make nanometer piezoelectric material surface produce heterocharge, can be used for the pollutant in degradation water.But up to now, for Ag
2o and BaTiO
3the heterojunction structure that nano cubic block is compounded to form, and utilize silver oxide/barium titanate (Ag
2oBaTiO
3) nano cubic block heterojunction structure have not been reported as photochemical catalyst and the application in acousto-optic concerted catalysis degradation of contaminant thereof.
Summary of the invention
For the deficiencies in the prior art, the problem to be solved in the present invention is to provide silver oxide/barium titanate (Ag that one has collaborative (supersonic synergic illumination) performance of catalyzing and degrading pollutant of acousto-optic
2oBaTiO
3) ultrasound light-catalyzed dose of nano cubic block heterojunction structure and preparation method thereof.
Silver oxide of the present invention/barium titanate (Ag
2oBaTiO
3) ultrasound light-catalyzed dose of nano cubic block heterojunction structure, it is characterized in that: described catalyst is the BaTiO of 60nm ~ 90nm by size dimension
3nano cubic block and be the Ag of 1 ~ 10nm at the diameter of its area load
2o nano particle is formed, wherein by quality ratio, and BaTiO
3: Ag
2o=5:1 ~ 1:5.
Further, above-mentioned catalyst is preferably the BaTiO of 75nm ± 10nm by size dimension
3nano cubic block and be the Ag of 4nm ± 2nm at the diameter of its area load
2o nano particle is formed, wherein by quality ratio, and BaTiO
3: Ag
2o=1:5.
Silver oxide of the present invention/barium titanate (Ag
2oBaTiO
3) preparation method of ultrasound light-catalyzed dose of nano cubic block heterojunction structure, step is:
1. by the anhydrous hydroxide of mass ratio NaOH:KOH=51.5:48.5, BaCl
2, nano-TiO
2join successively in hydrothermal reaction kettle, compactedness controls at 20 ~ 30% of reactor volume, and stirs; Then seal hydrothermal reaction kettle, put it in drying box, make hydrothermal temperature control at 200 ± 10 DEG C, reaction time controls at 48h ~ 72h, and naturally cool to room temperature after reaction terminates, products therefrom deionized water is rinsed repeatedly to neutrality, then suction filtration, dry, obtain BaTiO
3powder;
2. the BaTiO that 1. step obtains is got
3powder is also dispersed in water, ultrasonic agitation 30 ± 5min, and obtained concentration is the BaTiO of 0.1g//L ~ 2g/L
3suspension, gained solution is labeled as A;
3. BaTiO in mass ratio
3: Ag
2the ratio of O=5:1 ~ 1:5, adds the AgNO of respective reaction amount under ultrasonic agitation condition in solution A
3, and continuing ultrasonic agitation 60 ± 5min, gained solution is labeled as B;
4. under the condition of ultrasonic agitation, in B solution, dropwise add the NaOH solution of 0.2M, to B solution pH=14, obtain containing Ag
2oBaTiO
3brownish black suspension, isolate product deionized water and repeatedly rinse to neutrality, then suction filtration, dry, i.e. obtained silver oxide/barium titanate (Ag
2oBaTiO
3) ultrasound light-catalyzed dose of nano cubic block heterojunction structure.
Above-mentioned silver oxide/barium titanate (Ag
2oBaTiO
3) ultrasound light-catalyzed dose of nano cubic block heterojunction structure preparation method in:
Step 1. in by anhydrous hydroxide, BaCl
2, nano-TiO
2join proportional quantities in hydrothermal reaction kettle successively: 20g anhydrous hydroxide, 0.6mmolBaCl
2, 0.5mmol nano-TiO
2.
Step 3. in preferred BaTiO in mass ratio
3: Ag
2the ratio of O=1:5, adds the AgNO of respective reaction amount under ultrasonic agitation condition in solution A
3.
The present invention adopts the hot method of alkali and simple chemical precipitation method to prepare Ag
2o and BaTiO
3the heterojunction structure that nano cubic block is compounded to form, obtains by BaTiO
3nano cubic block and at its area load Ag
2silver oxide/ultrasound light-catalyzed dose of the barium titanate nano cubic block heterojunction structure of O nano particle.This ultrasound light-catalyzed dose with piezoelectric BaTiO
3for matrix, area load has the silver oxide nano particle of high catalytic activity, combines excellent visible light catalyst Ag
2o and BaTiO
3character, on the one hand under ultrasonication, be conducive to carrier molecule, the carrier produced in addition, the light-catalyzed reaction facilitating silver oxide is active.Experiment confirms: under ultrasound condition, due to cavitation, have a cube block structured BaTiO when acting on
3time upper, nanometer piezoelectric can be made to produce deformation.Because the crystal symmetry of nanometer piezoelectric is lower, when being subject to External Force Acting generation deformation, in structure cell, the relative displacement of negative ions makes positive and negative charge center no longer overlap, cause crystal generation macroscopic polarization, thus make nanometer piezoelectric material surface produce opposite charges, promote the separation of carrier, make changes mechanical energy be chemical energy, simultaneously again under the effect of illumination, further increase the photocatalytic activity of silver oxide.
Accompanying drawing explanation
Fig. 1 is the Ag of preparation
2oBaTiO
3x-ray diffraction (XRD) collection of illustrative plates of nano cubic block composite.
Fig. 2 is the Ag of preparation
2oBaTiO
3transmission electron microscope (TEM) photo under the low power of nano cubic block composite.
Fig. 3 is the Ag of preparation
2oBaTiO
3transmission electron microscope (TEM) photo under the high power of nano cubic block composite.
Fig. 4 is the Ag of preparation
2oBaTiO
3nano cubic block composite penetrates the lower degraded figure to RhodamineB in ultrasonic, illumination, supersonic synergic illumination.
Detailed description of the invention
Embodiment 1:
1. by 20g anhydrous hydroxide (NaOH/KOH=51.5:48.5), 0.6mmolBaCl
2, 0.5mmol nano-TiO
2join successively in hydrothermal reaction kettle, compactedness controls at 20 ~ 30% of reactor volume, and stirs; Then seal hydrothermal reaction kettle, put it in drying box, make hydrothermal temperature control at 200 DEG C, the reaction time controls at 48h, and naturally cool to room temperature after reaction terminates, products therefrom deionized water is rinsed repeatedly to neutrality, then suction filtration, dry, obtains BaTiO
3powder;
2. the BaTiO that 1. step obtains is taken
3powder 100mg, and be dispersed in 100mL water, ultrasonic agitation 30min, obtains the BaTiO that concentration is 1g/L
3suspension, gained solution is labeled as A;
3. BaTiO in mass ratio
3: Ag
2the ratio of O=1:5, adds the AgNO of respective reaction amount under ultrasonic agitation condition in solution A
3, and continuing ultrasonic agitation 60min, gained solution is labeled as B;
4. under the condition of ultrasonic agitation, in B solution, dropwise add the NaOH solution of 0.2M, to B solution pH=14, obtain containing Ag
2oBaTiO
3brownish black suspension, isolate product deionized water and repeatedly rinse to neutrality, then suction filtration, dry, i.e. obtained silver oxide/barium titanate (Ag
2oBaTiO
3) ultrasound light-catalyzed dose of nano cubic block heterojunction structure.
By the Ag of gained
2oBaTiO
3the German Brooker D8X-x ray diffractometer x of nano cubic block heterojunction structure ultrasound light-catalyzed dose of sample analyzes (the results are shown in Figure 1).
By the Ag of gained
2oBaTiO
3nano cubic block heterojunction structure ultrasound light-catalyzed dose of sample is produced JEM2100F type transmission electron microscope with Japanese JEOL company and is carried out observing (the results are shown in Figure 2, Fig. 3).
By the Ag of gained
2oBaTiO
3ultrasound light-catalyzed dose of nano cubic block heterojunction structure is penetrated in ultrasonic, illumination, supersonic synergic illumination and to be degraded to rhodamine B (RhodamineB) down, under acousto-optic cooperation condition, be degraded to 100% (see Fig. 4) after 1.5h irradiates.
Embodiment 2:
1. by 20g anhydrous hydroxide (NaOH/KOH=51.5:48.5), 0.6mmolBaCl
2, 0.5mmol nano-TiO
2join successively in hydrothermal reaction kettle, stir, compactedness controls at 20 ~ 30% of reactor volume; Then seal hydrothermal reaction kettle, put it in drying box, make hydrothermal temperature control at 200 DEG C, the reaction time controls at 72h, and naturally cool to room temperature after reaction terminates, products therefrom deionized water is rinsed repeatedly to neutrality, then suction filtration, dry, obtained BaTiO
3powder, stand-by;
2. 100mg barium titanate powder step 1. obtained is dispersed in 100mL water, and ultrasonic 30min obtains BaTiO
3concentration is the suspension of 1g/L, and gained solution is designated as A;
3. BaTiO in mass ratio in solution A
3: Ag
2the ratio of O=1:1 adds the AgNO of respective reaction amount respectively under ultrasound condition
3and constantly stirring 60min, gained solution is designated as B;
4. under the condition of ultrasonic agitation, in B solution, dropwise add the NaOH solution of 0.2M, to B solution pH=14, obtain containing Ag
2oBaTiO
3brownish black suspension, isolate product deionized water and repeatedly rinse to neutrality, then suction filtration, dry, i.e. obtained silver oxide/barium titanate (Ag
2oBaTiO
3) ultrasound light-catalyzed dose of nano cubic block heterojunction structure.
Embodiment 3:
1. by 20g anhydrous hydroxide (NaOH/KOH=51.5:48.5), 0.6mmolBaCl
2, 0.5mmol nano-TiO
2join successively in hydrothermal reaction kettle, stir, compactedness controls at 20 ~ 30% of reactor volume; Then seal hydrothermal reaction kettle, put it in drying box, make hydrothermal temperature control at 200 DEG C, the reaction time controls at 48h, and naturally cool to room temperature after reaction terminates, products therefrom deionized water is rinsed repeatedly to neutrality, then suction filtration, dry, obtained BaTiO
3powder, stand-by;
2. 100mg barium titanate powder step 1. obtained is dispersed in 100mL water, and ultrasonic 30min obtains BaTiO
3concentration is the suspension of 1g/L, and gained solution is designated as A;
3. BaTiO in mass ratio in solution A
3: Ag
2the ratio of O=3:2 adds the AgNO of respective reaction amount respectively under ultrasound condition
3and constantly stirring 60min, gained solution is designated as B;
4. under the condition of ultrasonic agitation, in B solution, dropwise add the NaOH solution of 0.2M, to B solution pH=14, obtain containing Ag
2oBaTiO
3brownish black suspension, isolate product deionized water and repeatedly rinse to neutrality, then suction filtration, dry, i.e. obtained silver oxide/barium titanate (Ag
2oBaTiO
3) ultrasound light-catalyzed dose of nano cubic block heterojunction structure.
Embodiment 4:
1. by 20g anhydrous hydroxide (NaOH/KOH=51.5:48.5), 0.6mmolBaCl
2, 0.5mmol nano-TiO
2join successively in hydrothermal reaction kettle, stir, compactedness controls at 20 ~ 30% of reactor volume; Then seal hydrothermal reaction kettle, put it in drying box, make hydrothermal temperature control at 200 DEG C, the reaction time controls at 48h, and naturally cool to room temperature after reaction terminates, products therefrom deionized water is rinsed repeatedly to neutrality, then suction filtration, dry, obtained BaTiO
3powder, stand-by;
2. 100mg barium titanate powder step 1. obtained is dispersed in 100mL water, and ultrasonic 30min obtains BaTiO
3concentration is the suspension of 1g/L, and gained solution is designated as A;
3. BaTiO in mass ratio in solution A
3: Ag
2the ratio of O=2:1 adds the AgNO of respective reaction amount respectively under ultrasound condition
3and constantly stirring 60min, gained solution is designated as B;
4. under the condition of ultrasonic agitation, in B solution, dropwise add the NaOH solution of 0.2M, to B solution pH=14, obtain containing Ag
2oBaTiO
3brownish black suspension, isolate product deionized water and repeatedly rinse to neutrality, then suction filtration, dry, i.e. obtained silver oxide/barium titanate (Ag
2oBaTiO
3) ultrasound light-catalyzed dose of nano cubic block heterojunction structure.
Embodiment 5:
1. by 20g anhydrous hydroxide (NaOH/KOH=51.5:48.5), 0.6mmolBaCl
2, 0.5mmol nano-TiO
2join successively in hydrothermal reaction kettle, stir, compactedness controls at 20 ~ 30% of reactor volume; Then seal hydrothermal reaction kettle, put it in drying box, make hydrothermal temperature control at 200 DEG C, the reaction time controls at 60h, and naturally cool to room temperature after reaction terminates, products therefrom deionized water is rinsed repeatedly to neutrality, then suction filtration, dry, obtained BaTiO
3powder, stand-by;
2. 200mg barium titanate powder step 1. obtained is dispersed in 100mL water, and ultrasonic 30min obtains BaTiO
3concentration is the suspension of 2g/L, and gained solution is designated as A;
3. BaTiO in mass ratio in solution A
3: Ag
2the ratio of O=5:1 adds the AgNO of respective reaction amount respectively under ultrasound condition
3and constantly stirring 60min, gained solution is designated as B;
4. under the condition of ultrasonic agitation, in B solution, dropwise add the NaOH solution of 0.2M, to B solution pH=14, obtain containing Ag
2oBaTiO
3brownish black suspension, isolate product deionized water and repeatedly rinse to neutrality, then suction filtration, dry, i.e. obtained silver oxide/barium titanate (Ag
2oBaTiO
3) ultrasound light-catalyzed dose of nano cubic block heterojunction structure.
Claims (2)
1. silver oxide/barium titanate (Ag
2oBaTiO
3) ultrasound light-catalyzed dose of nano cubic block heterojunction structure, it is characterized in that: described catalyst is the BaTiO of 60nm ~ 90nm by size dimension
3nano cubic block and be the Ag of 1 ~ 10nm at the diameter of its area load
2o nano particle is formed, wherein by quality ratio, and BaTiO
3: Ag
2o=5:1 ~ 1:5.
2. silver oxide/barium titanate (Ag as claimed in claim 1
2oBaTiO
3) ultrasound light-catalyzed dose of nano cubic block heterojunction structure, it is characterized in that: described catalyst is the BaTiO of 75nm ± 10nm by size dimension
3nano cubic block and be the Ag of 4nm ± 2nm at the diameter of its area load
2o nano particle is formed, wherein by quality ratio, and BaTiO
3: Ag
2o=1:5.
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| CN108786806B (en) * | 2017-04-27 | 2021-07-23 | 北京纳米能源与系统研究所 | Photocatalyst, photocatalyst film, preparation method and application thereof |
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| CN112973686A (en) * | 2021-03-02 | 2021-06-18 | 大连工业大学 | Method for enhancing photocatalytic performance of heterostructure composite material through pyroelectric effect and application |
| CN115350704B (en) * | 2022-07-27 | 2023-08-15 | 重庆工商大学 | Ag (silver) alloy 2 O cluster modified perovskite-like hydroxide visible light catalyst, preparation method and application |
| CN118059860B (en) * | 2024-04-07 | 2024-08-23 | 重庆市鲁渝矿业发展有限公司 | Preparation method and application of porous barium titanate composite material |
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| CN102887562A (en) * | 2012-11-01 | 2013-01-23 | 浙江师范大学 | Method for ultrasonically degrading dye wastewater by adopting nano piezoelectric material |
| CN103611531A (en) * | 2013-12-16 | 2014-03-05 | 长春工业大学 | Preparation method and application of silver oxide/titanium dioxide composite nanofiber photocatalyst |
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